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i diritti 5mm gaat effi DANIEL C. CHESTER, OF OGDENSBURG, NEW YORK.

Lettm's Patent'No. 88,849, dated April 13, 1869.

GRAIN-CONVEYER FOR ELEVATORS.

The Schedule referred to in these Letters Patent and making part o! the name.

To all 'whom it ma/y concern Be it known that I, DANIEL C. CHESTER, of Ogdensburg, in the county of St. Lawrence, and State of New York, have invented a new and improved Grain- Oonveyer for Elevators; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, which form part of this specification, and in which- Figure l represents a longitudinal view of a grainconveyer, constructed according to my improvement, as connected with an elevator;

Figure 2 represents an end View of the same; and

Figure 3, a lock-joint, used in ncnnection therewith, for coupling the same to the elevator.

Similar letters of reference indicate corresponding parts in the several figures.

This invention relates to spiral, or screw-conveyers for grain-elevators; and

It consists in a screw-conveyer, of novel character, whereby the grain may be carried to the foot of the elevator withqut the aid of a conveying-trough; and

It also consists lin the combination, therewith, of a universal coupling-joint and movable outer bearinghub, whereby the outer end of the conveyer may be moved or swung round, to reach the grain, instead of having the grain moved to it, and whereby it may be supported at the different localities to which it may be thus moved, and whereby the conveyer may be operated with equal efficiency at said diierent localities as when straight.

Referring to the accompanying drawings- A is a receptacle, or box, which may represent the hullof a scow, or other place in which grain is placed for subsequent removal.

B is a belt-and-bucket elevator, of the ordinary construction. t y

To the shaft f of the lower drum of this elevator B is connected a screw-conveyer. C. This screw-conveyer O diers from the screwconveyers of ordinary construction, inasmuch as, by the forward inclination pf its spiral flange, it has a tendency to carry the grain inwardly toward its central shaft, and to keep it' there -while it is being carried forward, thus making it less liable for the grain to leave the flange than if the flange Awere straight or rectangularly extended from the shaft, asin the usual way, and thereby dispensing with the necessity of using a conveying-trough, orbox, in ccnnection therewith.

This conveyer is provided, at vits inner end, with a universaljoint, c, of the ordinary construction, whereby provision is made for the swinging round-of the conveyer to di'erent parts of the hull or other enclosure in which it may be placed, and the free rotating thereof in said position.

In connection with the universal joint a, the outer bearing-hub His made movable, so as to allow for the moving of the outer end of the conveyer to the grain, in dierent localities, as fast as the grain is removed 'from `its immediate reach.

For this purpose, said bearing-.hub H is provided with three or more radial arms, or supports, h, so that, while the under ones may serve as supports to the said hub, or bearing, H, in whatever position itmay be tn rned or slid, the upper ones may serve as arms, or

levers, wherewith to turn or move the hub to other localities, when desirable.

This conveyor C is connected to the elevator B by means of a lock-joint, c.

Said lock-joint consists of two flanges, g g, one attached to the rear end of the universal joint a, and the other to the endof the shaft f, their faces being locked to each other by the passing of fixed headed pins, or studs i i on the one, through corresponding openings 0 o in the other, and a slight'forward turn 'given to the shaft f, or a corresponding backward turn given to the conveyer, so as to cause the necks of the said pins, or studs 'i t to enter concentric arc-formed slots s s, which connect with the openings o o, as illustrated in fig. 3.

The conveyer may, when desirable, be constructed of sections of convenient length, and coupled together by means of the aforesaid lock-joint c, and, instead of being connected to the drum-shaft, it may be entirely disconnected therefrom, and run by an independent application of power.

An additional conveyer, of left-handed construction, when the feed of one is insucient, may be similarly attached to the opposite end of the shaft f, for conveying the `grain from the opposite part of the hull.

What I claim as my invention, and desire to have secured by Letters Patent, is-

1. A screw-conveyer, for grain-elevators, having its spiral flange set at a forward inclination, or angle, whereby grain or other granulated material may be conveyed without the aid of a trough, substantially as herein described.

2. The combination, with the screw-conveyer C, of the universal joint a and the movable bearing-hub H, substantially as and for the purpose herein set forth.

3. The combination, with the movable hub, of the radial arms h, serving as supports for the hub while below it, and as levers for moving the same while above it, substantially as specied.

Witnesses: DANIEL C. CHESTER.

ALLAN B. PHILLIPs, ALBERT S. Nouns. 

